The MonsterVerse has slowly turned into one of Legendary Entertainment‘s most bankable IPs. Godzilla x Kong: Supernova is set to release next year and already has enormous anticipation behind it. The franchise has also diversified beyond the big screen with Monarch: Legacy of Monsters on Apple TV and the animated Skull Island series on Netflix.

But that’s not all. Legendary has already committed to a third streaming series, an as-yet-unnamed prequel spin-off that was announced some time ago. Wyatt Russell had previously been confirmed as the lead, reprising his role as Young Lee Shaw from Legacy of Monsters. And the latest update adds two more names to the roster.

According to a new report, Millie Brady and Pilou Asbæk have officially joined Russell as series regulars. Brady is best known for playing Lady Æthelflæd in The Last Kingdom, and you may recognize Asbæk as Euron Greyjoy from Game of Thrones. On the production side, JD Dillard has also been confirmed to be directing the pilot episode of the upcoming series.

What Will the New MonsterVerse Prequel Series Be About?

Showrunner Joby Harold has revealed that the series is set in 1984 and follows Colonel Lee Shaw on a covert mission behind enemy lines. The central objective is to stop the Soviets from unleashing a massive new Titan capable of turning the tide of the Cold War against the United States. The roles that Brady and Asbæk will be playing have not been disclosed yet.

People who watched Legacy of Monsters Season 2 may already have a head start on what to expect. The season included easter eggs referencing a Cold War-era operation from the 80s led by Lee Shaw, which was designated “Red Monarch” by the Monarch organization. That detail did not go unnoticed. Online communities have since adopted the name as the informal title for the upcoming series, and there is a strong possibility it will end up being the official title as well.

Monarch: Legacy of Monsters is available to stream on Apple TV.

via Collider